LaCrosse Footwear Men's Copper Merino Socks Olive Large. 63percent merino wool 8percent CuTec Copper 25percent nylon 4percent spandex Specifications for LaCrosse Footwear Men's Copper Merino Socks: Manufacturer: LaCrosse Footwear Fabric/Material: Copper Features of LaCrosse Footwear Men's Copper Merino Socks: Built with CuTec copper fibers reduce odors 63percent merino wool 8percent CuTec Copper 25percent nylon 4percent spandex Underfoot cushioning and flat toe seam Package Contents: LaCrosse Footwear Men's Copper Merino Socks LaCrosse Footwear 913326-L: Men's Copper Merino Socks Olive Large